וַיֵּ֣ט שָׁ֭מַיִם וַיֵּרַ֑ד וַ֝עֲרָפֶ֗ל תַּ֣חַת רַגְלָֽיו׃
Il incline les cieux et descend; sous ses pieds une brume épaisse.
Rashi on Psalms
And He bent the heavens, and He came down to pass through the land of Egypt. “He came down” is to be understood in its simple meaning. Another explanation is “i atonvit” in Old French, to flatten, as (in Exod. 39:3), and the radical is רדד.